FIELD: physics.
SUBSTANCE: phase-contrast device for visualisation of transparent objects, comprising single-mode laser, at least one lens, Zernicke filter on thermal nonlinearity installed in back focal plane of lens, and unit for registration and visualisation of transparent objects, differs by the fact that Zernicke filter on thermal nonlinearity is arranged in the form of cuvette with liquid medium, value of losses α1 for absorption of radiation in which at the length of 1 [cm] of optical path is at least α1≥0.05, where α [cm-1] is light absorption coefficient.
EFFECT: improved convenience of phase-contrast device adjustment for visualisation of transparent objects, reduced power of illuminating radiation object.
8 cl, 5 dwg
| Title | Year | Author | Number |
|---|---|---|---|
| PHASE-CONTRAST DEVICE TO GET BRIGHTNESS-INVERTED IMAGE OF OPAQUE OBJECTS | 2014 |
|
RU2569040C1 |
| APPARATUS FOR IMAGING PHASE NONUNIFORMITIES | 2012 |
|
RU2498366C1 |
| METHOD AND APPARATUS FOR FOURIER ANALYSIS OF LIQUID LIGHT-TRANSMITTING MEDIA | 2021 |
|
RU2770415C1 |
| PHASE-INTERFERENCE MODULE | 2013 |
|
RU2539747C1 |
| DEVICE FOR OBTAINING FLUORESCENT TOMOGRAPHIC IMAGES | 2007 |
|
RU2368306C2 |
| DEVICE FOR DIFFUSE FLUORESCENT TOMOGRAPHY | 2010 |
|
RU2441582C2 |
| METHOD AND DEVICE FOR FORMING PRECISION HOLES IN OPTICALLY TRANSPARENT FILM WITH ULTRA-SHORT LASER RADIATION PULSE | 2013 |
|
RU2551043C1 |
| METHOD OF NON-INVASIVE DETERMINATION OF OXYGEN TISSUE STATUS | 2010 |
|
RU2437617C1 |
| METHOD FOR OPTICAL TOMOGRAPHY OF THREE- DIMENSIONAL MICROSCOPIC OBJECTS AND MICROSCOPE WHICH IMPLEMENTS SAID METHOD | 1999 |
|
RU2145109C1 |
| DEVICE FOR APPLYING ELASTIC POLARIZATION SPECTROSCOPY | 2005 |
|
RU2292531C2 |
